SAMdisk — ChangeLog

Version 3.8.11 (2018-05-18)

• fixed decoding of RX02 sectors (thanks Chuck!)
• improved flux decoding with PLL adjustments (thanks @oec_Nibbleslab!)
• reduced default step-rate to improve compatibility with old drives
• increase accepted track size of DMK images to 0x2a40
• fixed over-sized tracks being bumped to the next data rate
• fixed unintentional FM set on recalibrate, in case of FDC issues

Version 3.8.10 (2017-05-14)

• added read and write support .qdos (QL) disk images
• added –irregular option for blind output image if first track isn’t regular
• added –fill to set filler byte for regular formats
• fixed setting perpendicular mode for 1Mbps data rate
• fixed reading directly to single-sided formats from a:/b:
• fixed short data indicator showing on no-data sectors
• fixed raw output not using source format fill byte for missing sectors
• changed raw output to allow blank head 1 to mirror head 0 format

Version 3.8.9 (2016-12-18)

• fixed clipping extent of non-error sectors
• fixed raw .2d file reading (thanks Tatsuyuki Sato)
• fixed HD track error during 2DD to 2HD promotion (thanks Tatsuyuki Sato)
• fixed use of scanning data rates not supported by FDC
• fixed –offsets crash if 2 stored copies were present
• changed gap indicator from g to +, added - for short sectors
• added support for double-density MB-02+ disks (thanks Jan Kucera)
• added –step-rate speed option (0=slow, 15=fast, 10=default)

Version 3.8.8 (2015-07-08)

• Added D88 support for 1D and 1DD disk types
• Added .1dd output extension for 1D/1DD in D88 container
• Added cylinder count detection to D88 image reading
• Added support for .2d raw format
• Fixed destructor crash bug in gcc builds (Linux and Mac)
• Fixed TR-DOS false-positives by requiring .trd extension
• Internal code fork from SAMdisk 4, which has now diverged too much

Version 3.8.7 (2015-03-08)

• Added support for Deep Though .DTI images (Jupiter Ace)
• Added –ace option to scan for Deep Though encoding in flux images
• Added –new-drive option for fast stepping and use of disk-change line
• Added License.txt to clarify free usage and lack of warranty
• Changed to –old-drive behaviour by default, ignoring BIOS drive type
• Changed to use cyl 0 instead of current head position for rpm measurement
• Fixed incorrect CHS handling of large BDOS disks (8GB+)
• Fixed false-positive on tracks using placeholder 8C 15 CRC
• Fixed false-positive where tracks matched both XOR and SUM checksums
• Fixed output of single-sided raw images

Version 3.8.6 (2014-12-23)

• Hotfix for crash during 8K sector reading (thanks Gorski!)

Version 3.8.5 (2014-12-21)

• Added support for reading HxC .HFE images (currently MFM only)
• Added preliminary support for TrinLoad network targets (SAM Coupe)
• Added deleted files to TR-DOS directory listings
• Added white-listing of two unused 8K track formats
• Added .88D/D68/D8U/2D as alternative file extensions to D88
• Added support for D88 images with wrong endian for sector count
• Restored running 8K checksum logic to better catch false negatives
• Fixed FDI image writing setting the appropriate checksum bits
• Fixed wasted space in FDI images by limiting to 2-bit sector sizes
• Fixed user cyl range being ignored when writing extended TRD images
• Fixed crash when reading UDI images containing blank tracks
• Fixed potential crash when removing duplicate sector copies
• Fixed comment and label propogation from source to target

Version 3.8.4 (2014-08-26)

• Added drive wobble for weak sector extraction from a single revolution
• Added warnings for multiple-copy incompatibilities with EDSK format
• Added warning is only copy of sector data is truncated at index mark
• Added warning if blank tracks are missing from end of EDSK images
• Removed lax 8K CRC condition that was masking real data errors
• Fixed crash on short sector removal during flux data processing
• Fixed multiple copies of fake 8K sectors being kept, bloating images
• Fixed MBD images being read in the wrong track order

Version 3.8.3 (2014-05-26)

• Fixed creation of truncated FDI images
• Fixed potential crash reading multiple copies of over-sized sectors
• Added SAMdiskHelper support for BDOS and Pro-DOS devices
• Improved detection of Pro-DOS mass-storage media
• Improved detection of errors in 8K sectors

Version 3.8.2 (2014-03-24)

• Fixed bad CRC calculation of overlapped sectors
• Added automatic gap2 preservation for converted KBI-19/CAAV-19 tracks
• Added –keep-overlap to retain full data size in overlapped sectors
• Relaxed gap removal checks after final sector for cleaner conversions
• Allow zero-sized gap3 filler during gap removal
• Allow EDSK final track header to be shorter than index size

Version 3.8.1 (2014-03-11)

• Fixed data extent bug reading from stream images (SCP/RAW/DFI)
• SBT images now auto-execute under SAM DOS, even if not natively bootable

Version 3.8 (2014-03-09)

• Added support for SuperCard Pro .scp flux disk images (MFM+FM)
• Added –pll option to control PLL method with flux image scanning
• Fixed –head giving ambiguous option error due to typo
• Fixed KBI-19 format slightly overhanging track wrap
• Improved EOT handling of flux images containing just one revolution
• Changed –slow-step to –old-drive to better match usage

Version 3.7 (2013-06-24)

• Added support for KryoFlux and DiscFerret stream images (MFM+FM)
• Added preliminary support for D4M (FD-4000) disk images
• Added hex output with –hex or -x, with limited hex using –hex-ish
• Added –no-gap4b to ignore gap data after the final sector
• Added –abs-offsets to show absolute rather than relative sector offsets
• Fixed ‘extra byte’ EDSK extension being used unnecessarily on CRC errors
• Fixed crash during CPC weak sector sniffing due to no-data 4th sector
• Fixed regular image reading reporting transient disk errors
• Improved support for ED images, including 2.88M raw images
• Improved gap reading support for IPF images
• Changed raw track parsing to ignore headers with ID CRC errors
• Changed raw image writing to use only first cyl to determine format
• Relaxed D2M sniffing by removing system partition type (0xff) check
• Reduced gap sync requirement to remove more unwanted gaps

Version 3.6.1 (2013-05-22)

• Fixed gap3 override issue during conversion of –all-gaps images

Version 3.6 (2013-05-19)

• Improved gap extraction for floppy, IPF, and DMK sources
• Improved track length and sector positions using track data
• Added warning if FDC refuses to read sectors (128-byte MFM)
• Added minor EDSK extension for exact-multiple gap data sizes
• Added CRC16 support to existing 6K sector checksum tests
• Added detection of unwanted duplicate sectors in bad disk dumps
• Added support for 1MB TRD and SCL images
• Added –trim option to write only used sectors to TRD images
• Added –no-data for data privacy during disk diagnostics
• Fixed wrong location of rate/encoding extension in EDSK header
• Fixed SCL input having cyl/head reversed, so file data was wrong
• Fixed modification effects being applied to merge target on read
• Fixed image gap3 not being preserved during floppy writing
• Fixed false CRC warning in gap data of deleted sectors
• Fixed false FDC corruption when all track CHRN values were 0
• Changed SCL input CRC fatal error to a warning
• Changed to require –fix to missing weak sectors and gap CRCs
• Changed to ignore no-id and id-crc sectors from IPF and DMK

Version 3.5 (2013-01-07)

• Fixed interleave and skew values for Pro-Dos .cpm images
• Alignment tweaks to some output formatting
• Restored code signing to help download validation

Version 3.4 (2012-08-14)

• Added create command for blank HDD and floppy images
• Added basic IDEDOS partition listing
• Added checking of good sectors to track repairing
• Added support for Velesoft DSK/DS2 transfer images
• Added –chrn to trust ID header over physical location
• Added –no-1m to skip 1Mbps data rate scanning
• Restored –byte-swap for Atom/AtomLite conversion
• Improved ATA identify data handling
• Improved scan output to report warnings above affected track
• Fixed recognition of DSC/HDR, CFI, LIF disk images
• Fixed floppy image conversion to .raw dump
• Fixed repaired sectors retaining original track offset
• Fixed detection of oversized tracks with just 1 sector
• Fixed HDD firmware string missing final character
• Fixed log file including empty status messages
• Fixed AL+ boot sector being mistaken for MBR
• Reverted to Visual Studio 2005 for old CPU compatibility

Version 3.3 (2012-06-14)

• Added built-in support for zipped and gzipped files
• Added support for repairing 8K sectors with bad CRCs
• Added support for raw hard disk images
• Added identify device data reading, where available (non-USB)
• Added –hdf to force HDF version (10 or 11), with v1.1 now the default
• Added –no-identify to ignore source identify data
• Added –no-cfa to suppress CFA festures in generated identify data
• Enhanced identify to include CHS/LBA28/LBA48 sector counts and CFA
• Enhanced verbose disk list to show serial+firmware and MBR partitions
• Changed disk list to show all devices by default, not just BDOS
• Fixed repairing to blank target tracks, with new density check
• Fixed HDD access beyond 4GB boundary, extended -s range to 2TB
• Fixed SAD image writing with custom sector sizes
• Fixed status messages being written to log and not erased correctly
• Improved FDC integrity checks during sector reads, for suspect hardware
• Improved total sector count to CHS mapping

Version 3.2 (2012-04-08)

• Added general support for 1Mbps data rate, used by ED disks
• Added 1Mbps support to IMD images, using new track modes 6+7
• Added –tty option to output console messages to non-console streams
• Fixed crash reading gap data from oversized sectors (thanks Philippe!)
• Fixed crash using –verify when writing non-simple images
• Fixed gap data trimming when writing FDI+IMD images

Version 3.1 (2012-03-18)

• Added –repair option to help combine damaged image dumps
• Added write support for D88 images
• Added support for IMD mixed sector sizes
• Added record name from source basename, if no label available
• Added more file sizes for raw image recognition
• Added verbose track output for floppy->image dumping
• Fixed IMD creation using 500Kbps instead of 250Kbps
• Fixed bit alignment during IPF track wrapping
• Fixed converting images to BDOS format when setting label
• Increased –rescan matching distance from 32 to 64 bytes
• Updated to zlib 1.2.5, using zlibwapi.dll instead of zlib1.dll

Version 3.0 (2010-06-20)

• Largely re-written again, for non-uniform track support
• Added +3 protections: Speedlock weak sectors, OperaSoft 32, various motor bug fixes
• Added CPC protections: Speedlock/EA weak sectors, Infogrames/Loriciel gaps, KBI-10, KBI-19
• Added support for many disk image containers, including EDSK, TD0, DMK, IPF
• Added support for zip, gzip and bzip2 archives using zlib1.dll and bzip2.dll
• Added directory support for MGT, TR-DOS, Opus, Didaktik and Amstrad CP/M
• HDD support for drives up to 2TB, with improved lock/dismount and safety checks
• Changed to Unix-style getopt for command-line options
• Removed embedded fdrawcmd.sys driver

Version 2.0 (2004-11-27)

• Completely re-written, including a new floppy driver (W2K or later only)
• Added format, verify, directory listing and scanning support
• Works with virus scanners that previously blocked direct access
• Consistent speed on all controller types

Version 1.1 (2003-07-29)

• Missing disk errors now cancel the copy process

Version 1.0 (2002-12-08)

• Initial release by Dave Laundon, with NT4/W2K/XP support
• Uses SAMDISK.SYS and SAMDISKL.SYS drivers for 10-sector disk access